Details of East Rockingham Plume Plotter

This page should be read in conjunction with How Plume Plotter Works. It provides more details specific to the East Rockingham version of Plume Plotter.

Stacks and buildings

Building measurements are taken from [1].

The image below shows the layout of the stack and building modelled. North is at the top; colours and numbers indicate the height of the buildings and the stack:

Stack measurements

These are taken from [1]:

Stack location: -32.251944,115.774725.
Stack height: 60 m.
Stack diameter: 2.5 m.
Stack gas exit velocity: 18.5 m/s.
Stack gas temperature: 140 °C.

The following values are used for albedo, Bowen ratio and roughness length. None of these are specified in [1]:

Albedo: 0.2.
Bowen ratio: 1.
Roughness length: 0.3.

Emissions

The emission rates of pollutants are taken from [1]:

Pollutant	Emission rate per second
Oxides of nitrogen	14.7 g
Sulphur dioxide	3.7 g
Carbon monoxide	3.7 g
Particulates	740 mg
Hydrogen chloride	740 mg
Hydrogen flouride	74 mg
TOC	90 mg
Dioxins and furans	7.4 ng
Cadmium and thallium	730 μg
Mercury	3.68 mg
Other metals	36.77 mg

Background levels

The background levels of pollutants are taken from [1]:

Pollutant	Background concentration per m³
Oxides of nitrogen	10 μg
Sulphur dioxide	2.7 μg
Carbon monoxide	815 μg
Particulates	15 μg
Hydrogen chloride	N/A
Hydrogen flouride	N/A
TOC	N/A
Dioxins and furans	N/A
Cadmium and thallium	N/A
Mercury	N/A
Other metals	N/A

Weather data

Weather data is taken from METAR reports from a local airport: Jandakot.

Upper air data is the latest reported by the Perth International Airport upper air station.

References

1. EAST ROCKINGHAM WASTE TO ENERGY FACILITY - ENVIRONMENTAL REVIEW DOCUMENT - Appendix 7: Air Quality Impact Assessment Report, Environmental Alliances Pty Ltd. December 2017.